US1219195A - Brake-shoe and wear-plate. - Google Patents

Description

A. THRAS'HER al 1. ozmN.

BRAKE SHOE AND WEAR PLATE- APPLlCATlON FILED FE. 3. |916.

1,219,195. v Patented Mar..13,l917.

F12i v w H20 ,ZZ iff q l .16 l i' 7 iK 7 2g 21 51.910 FZgl 16 J j 25 Z 7 zfJ/Al a IIf-u" D@ j l *l l gqfwentom UNITED siam@ YALVIN THRASHER ANI) JOI-IN B. OZBIRN, OF IONA, OKLAHOMA.

BRAKE-SHOE AND `VEAR-PLATE. l

Application filed February-3, 1916.

This invention relates Generall to wagb D ons, and particularlyto the braking mechanism thereof. Y

The invention has for its primary object to provide a brake shoe which may be Vconveniently and easily attached to or detached from the bra-ke beam of a vehicle, to facilitate repairing the same.

A still further object of the invention is to provide a device of the character setforth, wherein the brake shoe or block may be held securely to the brake beam.

A further object of the invention is to provide a brake block or shoe having iniproved means for supporting a wear plate thereto, whereby the plate may be removed when worn and supplemented by a new plate.

With these objects in View together with others which will appear as the description proceeds, the invention resides in the novel combination and arrangement of partsall as will be described more fully hereinafter, illustrated in the drawings, and particularly pointed out in the claims.

The invention will be best understood byl reference to the accompanying drawings, wherein- Figure l is a planvview of the rear end of a conventional form of wagon, illustrating a brake-beam equipped with mechanism constructed and arranged in accordance with the invention, Fig. Q is an enlarged horizontal section through the brake beam and illustrating the detail construction of the improved brake block or shoe and its cordinate parts, and Fig. 3 is a rear elevation of the device shown in Fig. 2.

The invention comprehends broadly thek arrangement of a brake block or shoe upon the sliding beam of a vehicle in such manner as to enable the same to be readily detached therefrom, and to thisA end the beam, illustrated conventionally at 4, may be provided upon its rear face with a pair of spaced elements between which the brake shoe or block 5 may be secured in position to engage the Specification of Letters Patent.

` same being in transverse alinement.

block 5 is ofV such dimension laterally as to V65 to the wheel.

retour-eu Mar. is, 1917.

Sera1-No.7'5,974. l i l periphery of the vehicle wheel when the brakes are applied. As a convenient means for mounting the block 5 in correct position, a yoke 6 is secured to the beam in any suit- 'able manner, the said yoke providing the spaced vertically disposed arms 7,` each of which is provided with an opening 8, the

lit snugly within the yoke 6, and is ,provi ded with a transversely disposed opening` for registration with the openings 8 in the spaced members or arms 7. Arranged upon the rear face of the beam 4:, and preferably to' extend longitudinally thereof is a slidable member in the form of a Vbolt or pin 10, of a diameter suiicient'to enable the same to enter yatwits free end the registered openings 8 and 9 of the arm 7 and block 5. :This rodv or slidable member maybe Vmountedfor suitable support in the spaced brackets 11 arranged upon the said beam, and a coil spring 12 encircles the said rod to exert outward pressure through the adjustable collar 18 to hold the said rod normally in projected position. The coil spring 12 maybe seated at its opposite end against the inner bracket 11. The collar-may be adjusted and held in its various positions longitudinallyof the slidable member 10 by means of a set screw 14. The oppositel o-r inner end of the slidable'rod 10 may be provided with an eye 15, through which a hook or link 16 secured The.V

upon the beam may be inserted when it is Y provided with a narrow vertically disposed slot 18, the said slots being in transverse alinement for the reception of a removable wear plate '19. The said slots are also so positioned as to enable the inner face of the wearY plate to engage against the outer or adjacent face of the shoe 5, thereby relieving'V the plates 17 of the strain incident to the friction caused when the brake is applied The plate 17 adjacent the outer end of the beam may be cut and lient outwardly to provide a stop 20 co-extensive with the slot 18 to limit the movement of the wear plate 19 in one direction. Arranged adjacent tlie upper and lower edges the inner plate 17 are clips 2l, within which a locking bar 22 may be inserted to in'close the slot 178 in thesaid plate after Vthe wear plate 19 has been inserted; a pin 23 is preferabiy arranged upon the bar 22 to'limit the downward movement of the latter.

` Vhen it is desired to `remcve the brake shoe or block, the sliding bar l0 may beV withdrawn against the tensionoi' the spring 12, and Yheld in'retracted position by means of the hook 16 upon the beam 4. The brake E arranged upon saidbloclc with itsl ends in For removshoe may then be readily removed from its position between the members ing the'wear plate 1S?, the bar 22 may be withdrawn from its position within the clips 21 andfthe plate 19 may then be slid fromE "engagement within the slots 18. Thus it is Vseen that new wear plates may be introduced into the slots upon the plates 17 when it is desired to replace-the same. Ther operation of adjusting the brake shoe or block to the z obvious.

Inasmuch as the brake shoes upon the opposite ends of the beam 4i are identical in construct-ion and means of adjusting the same, only one has been described, but itis to be understood that the single description will suliice for both.

1. In a vehicle brake, a beam, a block on said beam, a platle extending outwardly.; from each cthe lateral sides of said block', eaclrfof said plates being Y provided with a slot each alined with the other, a stop on the outer side of one of said plates covering one of said slots, a wear plate adapted to be inserted thro-ugh said slots to cover said shoe and to abut said stop at one end, and means forsecuring the opposite end of said plate ,ies

in the opposite slot,Y substantially Ias described.V Y

2. Tna vehicle brake, a block, a plate 0X- tendingY outwardlyfrom each of theY lateral Voutwardly from one of saidY plates to cover its slot, arpairof clips secured to the opposite plate in spaced relation, a wear plate said slots, a bar forY insertion through said clips to engage the adjacent end of said wear plate, and a pin on saidl bar to limit the movement of said bar inwardly of said clips, substantially Yas described. I

3. n a vehicle brake, a beam, a pair of spaced members on said beam, said members beingprovided with alined openings,` al block adapted to Ybe inserted between said ineinbers and provided with an opening adapted to register with the openings in said members, spaced brackets on said beam, a rod mounted for sliding movement in said brackets to be projected to engage within saidY registered openings, a collar on said rod, a spring interposed between'said collar and one of said bracketsJ for holding said rod normallyprojected, and means for holding said rod retracted, substantially as de scribed. lIn testimony whereofl we athis our signa tures in the presence ofrtwo'witnesses.

YALVTN THRASHER JOHN B. OZBIRN.

iVitnes'ses:

T. F. GAFFORD, JAS. T. BRINK.

Copies of ths patent may b obtained for ve` cents each, by addressing the Gommissioner of Patents Washington, D. C.

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